Which of the following expressions can be used to find the perimeter of the square? All sides are the same length. A. 4 x 9. B. 9 x 9. C. 9 + 9 +9 +9. D. 4 + 4 +4 +4.

Step-by-step explanation:

The formula for the perimeter of a square of side length s is P = 4s.

A. 4 x 9.   Incorrect.  There are 4 sides, not just 2.

B. 9 x 9.    Incorrect.  There are 4 sides, not just 2.

C. 9 + 9 +9 +9.    This would be the perimeter of a square of side length 9.

D. 4 + 4 +4 +4.      This would be the perimeter of a square of side length 4.

two data sets with the same median will not have the same varaibility

step-by-step explanation:

(3x-8) or (3x+8)

step-by-step explanation: